50% Cotton 50% Polyester blend. Air jet spun yarn equals softer feel and no pill. Double needle stitching. Set in sleeves. 1x1 athletic rib with Lycra. Quarter-turned body to eliminate centre crease. Size Chest (to fit)S (5/6) - 28" M (7/8) - 30" L (9/11) - 32" XL (12/13) - 34"